Senior Linux Software Developer

About Us:

We are the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on Proofpoint to protect their organizations. We’re driven by a mission to stay ahead of bad actors and safeguard the digital world. Join us in our pursuit to defend data and protect people.

How We Work:

At Proofpoint, you’ll be part of a global team that breaks barriers to redefine cybersecurity, guided by our BRAVE core values: Bold in how we dream and innovate, Responsive to feedback, challenges, and opportunities, Accountable for results and best-in-class outcomes, Visionary in future-focused problem-solving, Exceptional in execution and impact.

Corporate Overview

Proofpoint is a leading cybersecurity company protecting organizations’ greatest assets and biggest risks: vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web.

We are singularly devoted to helping our customers protect their greatest assets and biggest security risk: their people. That’s why we’re a leader in next-generation cybersecurity.

Protection Starts with People. Proofpoint.

The Role We’re seeking an experienced software engineer with a strong background in user-mode Windows applications and hands-on expertise in Windows driver development. This is a critical role that plays a vital part in our company’s success as we continue to grow. We are looking for someone who’s always ready to roll up their sleeves, dive in headfirst, and make a major impact.

The Role

We’re seeking an experienced software engineer with a strong background in user-space Linux applications and hands-on expertise in Linux kernel development. This is a critical role that plays a key part in our company’s success as we continue to grow. We’re looking for someone who’s eager to dive deep into complex system challenges, take ownership, and make a major impact.

Your Day-to-Day

As a Linux Agent Developer, you will take ownership of key components of our endpoint detection and prevention solution, working within our Linux Agent team. You’ll design and develop core components using proven technologies while also inventing innovative, low-level solutions.

• Participate in architectural design and strategic technical decision-making
• Contribute throughout the development cycle within a SCRUM environment
• Collaborate closely with QA, DevOps, backend developers, product managers, and fellow agent developers
• Deliver high-quality, performant code supported by robust unit and integration tests
• Work on kernel-space and user-space integrations essential to our security posture.

What You Bring to the Team

• 6+ years of experience in C / C++ development – Mandatory
• Strong background in Linux Kernel Development (modules, drivers, kernel subsystems) – Mandatory
• Proven experience with software design and OOD principles – Mandatory
• Solid understanding of multi-threading, synchronization, and concurrency models – Mandatory
• Experience with Linux system programming and APIs (syscalls, signals, procfs, netlink, etc.) – Mandatory
• Familiarity with debugging tools and kernel tracing (gdb, ftrace, perf, crash) – Advantage
• Experience building and maintaining system daemons and background services – Mandatory
• Familiarity with Linux security internals, networking stack, or file system development – Advantage

Why Proofpoint

Protecting people is at the heart of our award-winning lineup of cybersecurity solutions, and the people who work here are the key to our success. We’re a customer-focused and a driven-to-win organization with leading-edge products. We are an inclusive, diverse, multinational company that believes in culture fit, but more importantly ‘culture-add’, and we strongly encourage people from all walks of life to apply.

We believe in hiring the best and the brightest to help cultivate our culture of collaboration and appreciation. Apply today and explore your future at Proofpoint! #LifeAtProofpoint

Sincerly,

-Recruiting Enablement

#LI-EY1

Why Proofpoint? At Proofpoint, we believe that an exceptional career experience includes a comprehensive compensation and benefits package. Here are just a few reasons you’ll love working with us:

• Competitive compensation
• Comprehensive benefits
• Learning & Development: We are committed to the growth and development of our team members, offering a range of programs including leadership and professional development workshops, stretch project assignments, and mentoring opportunities to help employees reach their full potential.
• Flexible work environment: [Remote options, hybrid schedules, flexible hours, etc.].
• Annual wellness and community outreach days
• Always on recognition for your contributions
• Global collaboration and networking opportunities

Our Culture:

Our culture is rooted in values that inspire belonging, empower purpose and drive success-every day, for everyone. We encourage applications from individuals of all backgrounds, experiences, and perspectives. If you need accommodation during the application or interview process, please reach out to accessibility@proofpoint.com.

How to Apply Interested? Submit your application here https://www.proofpoint.com/us/company/careers. We can’t wait to hear from you!

Proofpoint Best Places to Work Awards

Proofpoint has been honored with six Best Places to Work Awards in 2024 by workplace culture leader Comparably, including Best Company Career Growth, Best Company Outlook, Best Global Culture, Best Engineering Teams, Best Sales Teams, and Best HR Teams.

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About Us

We are the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on Proofpoint to protect their organizations. We’re driven by a mission to stay ahead of bad actors and safeguard the digital world. Join us in our pursuit to defend data and protect people.

Our BRAVE Values:

At Proofpoint, we are BRAVE in everything we do, and our values aren’t just words—they shape how we work, collaborate, and grow.

We seek people who are bold enough to challenge the status quo, responsive in the face of ever-evolving threats, and accountable for delivering real impact.

We value those with a visionary mindset who anticipate what’s next and push cybersecurity forward, and we celebrate exceptional execution that ensures we continue to defend data and protect people.

Proofpoint is an equal opportunity employer, we hire without consideration to race, religion, creed, color, national origin, age, gender, sexual orientation, marital status, veteran status or disability.

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Build Meaningful Connections:

Find your network, your allies, and your biggest fans. We know that work is simply better when you’re surrounded by people who inspire you—who share ideas, cheer you on, and genuinely want to see you succeed. That’s why we offer social circles, sponsored networks, and connection points across teams and time zones—to help you find your people, build your community, and thrive together.

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Do Your Best Work:

This isn’t just a job—it’s a mission to protect people and defend data in a world that never slows down. We’re building the future of human-centric cybersecurity, and that future belongs to all of us. We take ownership, move fast, and hold ourselves accountable—because that’s what it takes to stay ahead. And we do it together, winning as one.

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Build success on your terms:

Be empowered to reach your full potential through meaningful challenges and personalized support—designed around you and your goals. Whether you're growing as a leader or leveling up from great to exceptional as an individual contributor, we’re here to help you get there.

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